Gold-Leaf 23kt-XX-Deep Loose-Pack of 20-Books contains 500-sheets of Gold-Leaf size-3-3/8" x 3-3/8" Min 16 Gram Weight. Surface/Loose Gold-Leaf 23kt-XX-Deep Loose-Pack is surface leaf therefore it is Loose Leaf. A full Pack A packs coverage area is 39.5 square feet, Each Book of 25 sheets has a coverage area of 1.98sq ft., without giving consideration for waste or overlap. This product is great for glass gilding and surface gilding. It is loose in the book and should be applied with a gilders tip or other method of transfer. MANUFACTURED IN THE USA! Produced by the last American Gold Beaters! Gold-Leaf 23kt-XX-Deep Loose-Pack available here.